PFPC
Zhao Table

Table showing disturbances in T4/T3 levels:

Zhao W, Zhu H, Yu Z, Aoki K, Misumi J, Zhang X - "Long-term Effects of Various Iodine and Fluorine Doses on the Thyroid and Fluorosis in Mice"
Endocr Regul 32(2):63-70 (1998)
Full Text

Groups:

ID = Iodine Deficient (0.0 ug/l)
IN = Iodine Normal (20.0 ug/l)
IE = Iodine Excess (2500 ug/l)

FD = Fluoride Deficient (0.0 mg/l)
FN = Fluoride Normal (0.6 mg/l)
FE = Fluoride Excess (30 mg/l)

Thyroid Hormone Levels: T3 (after 100 days)

ID

IN

IE

FD

0.49 +/- 0.27 ng/ml

1.02 +/-0.50 ng/ml

0.42 +/-0.23 ng/ml

FN

0.49 +/-0.25 ng/ml

0.95 +/- 0.09 ng/ml

0.48 +/- 0.24 ng/ml

FE

1.52 +/-0.33 ng/ml

0.90 +/- 0.45 ng/ml

0.47 +/- 0.24 ng/ml

Thyroid Hormone Levels: T4 (after 100 days)

ID

IN

IE

FD

45.2 +/- 14.39 ng/ml

68.2 +/- 12.80 ng/ml

68.2 +/- 12.80 ng/ml

FN

46.2 +/- 11.21 ng/ml

89.7 +/- 14.68 ng/ml

89.7 +/- 14.68 ng/ml

FE

116.9  +/- 15.13 ng/ml

101.6 +/- 18.36 ng/ml

98.8 +/- 8.20 ng/ml

NOTE: After 150 days the T4 levels were half of those shown above in IN and IE, regardless of F- intake. In all ID groups T4  levels were hugely decreased (average values were 5.0 to 9.6ug/ml)

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